Answer
In the polar form of a complex number, $r\left( \cos \theta +i\sin \theta \right)$, $r$ is called the modulus and $\theta $ is called the argument, $0\le \theta \le 2\pi $.
Work Step by Step
Given above.
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 6 - Section 6.5 - Complex Numbers in Polar Form; DeMoivre's Theorem - Concept and Vocabulary Check - Page 767: 3
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